Improvement in lathe-tool



No. 75,060. 4 PATBNTED MAR. s, 1868.

v '1. SHAW.

LATHE TOOL. I

qiw I WITNESSES.

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Letters Patent No. 15,060, datedzzM'arc-h 3, 18 68.

IMPROVEMENT IN LATHE-TOOL.

My: Stbzlmle rrfmch tn inibm 3am; fiatmt anh making mm iii the tame.

TO ALL WHOM IT MAY CONCERN:

Be it known thntI; Tnoxss. SHAW, of the city and county ot'Philodelphia, Pennsylvania, have invented y a new and improved Lathe-Tool; and I hereby declare the following to be a full, clear, and erect description of the same, reference being had to the accompanying drawings, and tothe letters of reference marked thereon. My invention consists in the modeof inserting cutter-bits intool-holder in the manner and for the purpose as hereafter described.

'In order to enable others to use and practise my invention, I will proceedto'describe its construction and operation. On reference to the accompanying drewing,gwhieh forms part of the specification- Fignre 1 represents a side view of tool, and Figure 2 a top view on liner 8 of fig. 1. Figure 8, a top view. Similar letters refer to similar pertspof'whieh a is the tool-holder and 6 the cutter-bit, end'c a wedge, all for the purpose as hereafter described.

The objectof; this invention is to furnish s cheap and eflieient lathe-tool, with separate cutter-bitsprojectihg,:from the tool-holder, so that nothing intervenes between the cutter-bit and the work, and for the further yin-pose of .holding the cutter securely when performing heavy work. I

Itwjll be observed that holder at is dove-tailed for holding bit'b securely in one direction, and that wedge- -.c"is provided with a lip on its under and smaller end, on which bit 6 rests, and if the bit is hammered or forced down, it carries wedge c with it, until the whole is securely held by reason of pressure of wedge.

It will be evident that this tool will'answer as well for planer-s as for the lathes.

C'Zat'm. i What I claim, and desire to secure by Letters Patent, il-1. The combination of holder :1 .with cutter-bit b, and wedge c, in the manner and for the purpose described. l THOMAS. SHAW.

Witnesses:

'3. Gone,

Ems Joan SHAW. 

